Socket sets organized in the top drawer of toolbox


Our customers are our friends and also our neighbours.

We aim to do right by every single one of them, every single time. 


We specialize in a wide variety of Automotive and Heavy-Duty Truck Services


Our Popular Services

  • Factory Scheduled Maintenance

  • Preventative Maintenance Inspections

  • Safety Standards Inspections

  • Commercial Vehicle Inspections

  • HD Diesel Emission Tests

  • Brake Inspections & Services

  • Driveability Tune-Ups

  • Filter Replacements

  • Bulb Replacements

  • Windshield Wiper Blades

  • Fluid Replacements

  • New Tire Installation

  • Tire Rotations

  • Wheel Balancing

Wheels & Tires

  • New Tire Sales & Installation

  • Tire Inspections

  • Tire Rotations

  • Wheel Balancing

  • Rim Replacements

  • Tire Air Pressure Checks

  • Tire Pressure Monitor System Diagnostics

  • Tire Pressure Monitor Sensor Replacements

  • Wheel Position Relearn Procedures

  • TPMS Repairs & Service

Heating & Air Conditioning

  • Heating & Cooling System Diagnostics

  • Air Conditioning Diagnostics & Repairs

  • A/C Belt & Tensioner Replacement

  • Compressor Repair & Replacement

  • Clutch Repair & Replacement

  • Condenser Services & Replacement

  • Evaporator Core Replacement

  • ODP Certified & Trained

  • R134A Refrigerant Recovery & Recharge

Electrical System

  • Electrical System Diagnostics

  • Wiring Repairs

  • Charging System Service & Repairs

  • Battery Replacement

  • Alternator Replacement

  • Starter Motor Repairs & Replacement

  • Ignition & Key Replacement

  • Electrical Device Diagnostics

  • Power Window Repair

  • Power Door Lock Repair

  • Windshield Wiper System Repair

  • Power Accessory Device Repair

  • Vehicle Lighting Diagnostics & Repairs

  • Headlight Restoration

  • Headlight Aiming

Engine Mechanical

  • Engine Repair

  • Engine Replacement

  • Engine Performance Check

  • Belt Replacement

  • Hose Replacement

  • Cooling System Repair

  • Radiator Repair & Replacement

  • Water Pump Repair & Replacement

  • Drivability Diagnostics & Repair

  • Fuel Injection Repair & Service

  • Fuel System Repair & Maintenance

  • Ignition System Repair & Maintenance

Transmission & Differential

  • Transmission Repairs & Service

  • Transmission Replacement

  • Drive-line Repair & Maintenance

  • Axle Repair & Replacement

  • Clutch Repair & Replacement

  • Transmission Fluid Service

  • Flywheel Repair & Replacement

  • Driveshaft & U-Joint Repair

  • Transmission Flush

  • Differential Diagnosis

  • Differential Rebuild & Service

Exhaust Systems

  • Exhaust Repairs

  • Muffler Repair & Replacement

  • Tailpipe Repair & Replacement

  • Catalytic Converter Replacement

  • Exhaust Manifold Repair & Replacement

  • Custom Exhaust Fabrication

  • Exhaust System Upgrades

Steering & Suspension

  • Wheel Alignments​

  • Steering Linkage Service & Repair

  • Tie Rod End Replacement

  • Power Steering Service & Repair

  • Suspension Service & Repair

  • Ball Joint Replacement

  • Control Arm Replacement

  • Shock Absorber Replacement

  • Strut Replacement

  • Leaf Spring Replacement

  • Air Suspension Service & Repair

Brake Systems

  • Complete Brake Service & Repairs

  • Hydraulic Brake Inspections & Service

  • Electric Brake Inspections & Service

  • Air Brake Inspections & Service

Fleet Services

  • Preventative Maintenance (PM)

  • Factory Scheduled Maintenance

  • Automotive & Light Duty Vehicles

  • Medium Duty Vehicles

  • Semi Trucks & Trailers

  • Commercial Truck Repairs & Service

  • Commercial Trailer Repairs & Service

  • Annual Vehicle Inspections

  • Safety Inspections

  • Commercial Accounts

Alternative Fuels

  • Natural Gas Conversions

  • Propane Conversions

  • Alternative Fuel System Diagnostics

  • Alternative Fuel System Repairs

  • Vapor Sequential Injection Systems

  • VSI-Direct Injection Systems (VSI-DI)

  • Compressed Natural Gas Systems

  • Liquefied Petroleum Gas (LPG) Systems

  • Safety Inspections & Certifications

  • CNG/LPG Tank Replacements

Natural Gas Refuelling

  • Compressed Natural Gas Refuelling

  • Four 3000PSI Fast-Fill CNG Dispensers

  • 24/7 Cardlock Account Access

  • Location: 733 Park Ave West

Diagnostics & Programming

  • Advanced Diagnostic Capabilities

  • Specialized Equipment

  • Ford, GM, and Chrysler OEM Software

  • Cummins & Navistar OEM Software

  • Module Replacement & Programming

  • Software Updates & Calibrations

Diesel Engine Services

  • Diesel Engine Diagnostics 

  • Diesel Engine Service & Repairs

  • Turbocharger Replacements

  • Intercooler Replacements

  • Diesel Fuel System Service & Repairs

  • Diesel Exhaust System Service & Repair

  • Electronic Control Unit Diagnosis

  • Diesel Particulate Filter Service

  • DPF Maintenance & Regeneration

  • Diesel Exhaust Fluid Refills

  • DEF System Diagnostics & Service

Highly Skilled & Experienced Staff

When it comes to working with fleets, ATW Automotive has the knowledge and expertise to make maintaining a fleet of vehicles simple and easy.  Our Service Advisors have the tools to help you keep track of your maintenance schedules. Our Technicians are Red Seal Certified and highly skilled, working together and building on decades of combined experience.

Our technicians have the most advanced equipment available right at their fingertips.  You don't need to go to the dealership for factory scheduled maintenance, diagnostics, or even the more complicated repairs.

Automotive Service Technician performing adjustments to the alignment on a vehicle
Automotive Service Technician removing an engine from a UPS truck

We Know Preventative Maintenance

ATW Automotive Services in Chatham, Ontario, performs the area’s most complete and comprehensive maintenance and repairs for your entire fleet. Your vehicles are meant to work for you and to be productive when you are out on the road.


The last thing you want to worry about is a broken-down vehicle. The wise thing to do is to have a highly-trained and experienced repair facility service your entire fleet at once. You want the money to keep rolling in, and you want your organization to be as productive as possible. That’s what our team is here to do for you and your fleet.

Teamwork Makes the Dream Work

ATW has the team you need, so you can completely relax and concentrate on business. We take pride in knowing that you’re able to succeed and prosper stress-free because we’re taking excellent care of your fleet.

With our team of technicians taking care of your maintenance and repairs, you’ll notice enhanced driving experiences, fewer breakdowns, as well as improved service experiences and far fewer headaches. We know what it takes to manage vehicle maintenance, and we want you to know we're here to help.

Automotive Service Technician checking the oil level after performing an oil change service
Truck Service Technician descaling a wheel hub on a truck with an air needler

Your Safety Is Most Important 

We’re interested in protecting your fleet for today and tomorrow, extending your vehicles' road-life as long as possible. One essential safety component is the braking system. With our quality brake inspections and service, we can ensure that your drivers and cargo are always safe. 

With our clean and consistent oil change services, we’re able to inspect, protect and preserve your fleet’s engines. Since they are likely to be on the road more frequently and drive longer than a regular vehicle, our staff will adjust service plans to your specific needs. 

We Care About You

Our certified technicians can handle any of your repair needs and provide any preventative maintenance services you need on your vehicles. When your cars are often out on the road collecting kilometres, the chances of a need for repair significantly increase. 


Our Service Advisors have the tools and training to help you manage your vehicle maintenance. Bring your vehicles to ATW, and we’ll be your dedicated service provider. We strive to go above and beyond with every service we perform for you. Our team treats all of our customers like family. We're here helping you save time and letting you stay focused on business.

Automotive Service Technician inspecting tires on a vehicle
Orange and yellow transient colours

Schedule Your Appointment Today!